/Engine/Plugins/Developer/Concert/ConcertSync/ConcertSyncCore/Source/ConcertSyncCore/Public/ConcertDataStoreMessages.h
IConcertClientDataStore::CompareExchange()methods.
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)() struct FConcertDataStore_CompareExchangeRequest : public [FConcertDataStore_Request](API\Plugins\ConcertSyncCore\FConcertDataStore_Request)
FConcertSession...
Desired
The desired value to store.
FConcertSession...
Expected
The expected value if 'ExpectedVersion' is zero.
uint32
ExpectedVersion
The expected version of the value.